Suggest Treatment For Headaches And Difficulty Breathing After Using Heat Pump

I am 76 years old in reasonably health. I have a new heatpump and there has been a bad odor which I was told was "dirty sock syndrom" which is caused by bacteria and mold on the coils. I have developed headasches, and later dificulty breathing. I had a heart atack in 06 and I was concerned it might be another. I was sent to the emergency room by my Cardiologist and he pereformed a heatr stint and found no problem. I have been to my family doctor, eye doctor, ENT, cardiologist and back to my family doctor. My breathing is better now that I am outdoors more this summer, but my headaches are the same. Is it possible I have contracted a bacterial infection or ,old from this heatpump proble.?